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    1. Home
    2. A-Z Dictionary
    3. Letter S

    Medical terms - Letter S

    1,526 terms start with the letter S.

    • Syncope, micturition

      The temporary loss of consciousness upon urinating. (Syncope is the temporary loss of consciousness or, in plain English, fainting). The situations that trigger this reaction are diverse and include having blood drawn…

    • Syncope, situational

      The temporary loss of consciousness in a particular kind of situation. The situations that trigger this reaction are diverse, and include having blood drawn, straining while urinating or defecating, and coughing. It can…

    • Syncope, swallowing

      The temporary loss of consciousness upon swallowing. Syncope is the temporary loss of consciousness or, in plain English, fainting. The situations that trigger this reaction are diverse and include having blood drawn…

    • Syncope, vasodepressor

      The temporary loss of consciousness in a particular kind of situation. (Syncope is temporary loss of consciousness or, in plain English, fainting). The situations that trigger this reaction are diverse and include…

    • Syncope, vasovagal

      See: Vasovagal syncope

    • Syndactyly

      A condition in which two or more of the fingers or toes are joined together. This joining can involve the bones or just the skin between the digits. Joining of the bones is called bony syndactyly. Webbing of the skin…

    • Syndactyly, bony

      A condition in which the bones of fingers or toes are joined together. Bony syndactyly is the opposite of cutaneous syndactyly, in which the bones are normal but skin between the digits is webbed

    • Syndactyly, complete

      A condition in which fingers or toes are completely joined together, with the connection extending from the base to the tip of the involved digits. Complete syndactyly is the opposite of partial syndactyly, in which the…

    • Syndactyly, cutaneous

      A condition in which fingers or toes are joined together, and the joining involves only the skin, not the bones. Cutaneous syndactyly is the opposite of bony syndactyly, in which the bones are of the digits are joined

    • Syndactyly, partial

      A condition in which fingers or toes are partially joined together. Syndactyly can involve the bones or just the skin. With partial syndactyly, the connection extends from the base only part way up the involved digits…

    • Syndactyly, Poland

      A unique pattern of one- sided malformations characterized by a defect of the chest (pectoralis) muscle on one side of the body and webbing of the fingers (cutaneous syndactyly) of the ipsilateral hand (the hand on the…

    • Syndecan

      One of a family of core proteins with sugars attached to the cell surfaces that control or influence tissue repair, metabolism, the formation of tumors and the development of immune responses. The name is derived from…

    • Syndemic

      A set of linked health problems involving two or more afflictions, interacting synergistically, and contributing to excess burden of disease in a population. Syndemics occur when health-related problems cluster by…

    • Syndromatic hepatic ductular hypoplasia

      Also called Alagille syndrome or arteriohepatic dysplasia, this is a genetic disorder characterized by jaundice in the newborn period, liver disease with cholestasis, peripheral pulmonic stenosis and unusual face…

    • Syndrome

      A set of signs and symptoms that tend to occur together and which reflect the presence of a particular disease or an increased chance of developing a particular disease. For example, the constellation of numbness of the…

    • Syndrome of ichthyosis, spasticity, oligophrenia

      A: Also known as the Sjogren-Larsson syndrome, this is a genetic (inherited) disease characterized by a triad of clinical findings consisting of ichthyosis (thickened fish-like skin), spastic paraplegia (spasticity of…

    • Syndrome X

      See: Metabolic syndrome

    • Syndrome, Aarskog

      See: Aarskog-Scott syndrome

    • Syndrome, Aarskog-Scott

      See: Aarskog-Scott syndrome

    • Syndrome, Aase-Smith I

      See: Aase-Smith syndrome I

    • Syndrome, Aase-Smith II

      See: Aase-Smith syndrome II

    • Syndrome, abdominal muscle deficiency

      See: Abdominal muscle deficiency syndrome

    • Syndrome, Achoo

      A disorder characterized by nearly uncontrollable paroxysms of sneezing provoked in a reflex fashion by the sudden exposure of a dark-adapted subject to intensely bright light, usually to brilliant sunlight. The number…

    • Syndrome, acquired immunodeficiency

      AIDS

    • Syndrome, acute brain

      See: Delirium

    • Syndrome, acute respiratory distress

      Better known as ARDS. See: ARDS

    • Syndrome, adult respiratory distress

      Better known as ARDS. See: ARDS

    • Syndrome, Alagille

      Also known as arteriohepatic dysplasia, this is a genetic disorder characterized by jaundice in the newborn period, liver disease with cholestasis, peripheral pulmonic stenosis and unusual face. Children with Alagille…

    • Syndrome, Alexander

      See: Alexander disease

    • Syndrome, Alpers

      See: Alpers disease

    • Syndrome, Alport

      See: Alport syndrome

    • Syndrome, Alstrom

      See: Alstrom syndrome

    • Syndrome, androgen insensitivity

      Also known as complete androgen insensitivity syndrome. This is a genetic disorder that makes XY fetuses insensitive (unresponsive) to androgens (male hormones). Instead, they are born looking externally like normal…

    • Syndrome, antiphospholipid antibody

      An immune disorder characterized by the presence of abnormal antibodies in the blood associated with abnormal blood clotting, migraine headaches, recurrent pregnancy losses (repeat spontaneous abortions), and low blood…

    • Syndrome, aortic arch

      See: Aortic arch syndrome

    • Syndrome, Apert (acrocephalosyndactyly)

      An inherited disorder with abnormalities of the skull and face and the hands and feet. There is premature closure of the sutures of the skull (craniosynostosis). This results in an abnormal head shape, which is…

    • Syndrome, Asperger

      See: Asperger syndrome

    • Syndrome, atypical measles (AMS)

      Measles (AMS): An altered expression of measles, AMS begins suddenly with high fever, headache, cough, and abdominal pain. The rash may appear 1 to 2 days later, often beginning on the limbs. Swelling (edema) of the…

    • Syndrome, autoimmune polyendocrinopathy

      A genetic autoimmune disease with an extraordinary array of clinical features but characterized most often by at least 2 of the following 3 findings: hypoparathyroidism -- underfunction of the parathyroid glands which…

    • Syndrome, autoimmune polyglandular (APS)

      A genetic autoimmune disease with an extraordinary array of clinical features but characterized most often by at least 2 of the following 3 findings: hypoparathyroidism -- underfunction of the parathyroid glands which…

    • Syndrome, Barlow

      Barlow syndrome is mitral valve prolapse (also known as 'click murmur syndrome'), the most common heart valve abnormality, affecting 5-10% of the world population. Most patients have no symptoms and require no…

    • Syndrome, battered child

      A disease in which children are physically abused. The battered child syndrome is a form of child abuse. Not until the 19th century were children granted the same legal status as domesticated animals in regard to…

    • Syndrome, Behcet's

      See: Behcet's syndrome

    • Syndrome, Bernard

      A complex of abnormal findings, namely sinking in of one eyeball, ipsilateral ptosis (drooping of the upper eyelid on the same side) and miosis (constriction of the pupil of that eye) together with anhidrosis (lack of…

    • Syndrome, Bernard-Soulier

      Nt platelet syndrome): This is a primary problem of platelets in which the platelets lack the ability to stick adequately to injured blood vessel walls. As a result of this problem there is abnormal bleeding…

    • Syndrome, Bloch-Sulzberger

      Also known as incontinentia pigmenti (IP). A genetic disease with blisters that develop soon after birth on the trunk and limbs, then heal, but leave dark (hyperpigmented) streaks and marble-like whorls on the skin…

    • Syndrome, Boerhaave's

      See: de Lange syndrome.

    • Syndrome, Brachmann-de Lange

      See: de Lange syndrome

    • Syndrome, Brown

      An ophthalmology (eye) problem. Brown syndrome is an abnormality that is present at birth (congenitally) and is characterized by an inability to elevate the eyeball when trying to move the eyeball to the outside. Brown…

    • Syndrome, burning mouth

      An intense burning sensation on the tongue, often at the tip of the tongue. The burning mouth syndrome tends to develop in supertasters and post-menopausal women. Supertasters have an unusually large density of taste…

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